Dropped intercept from phreg output

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/parfm@111 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
removed require(eha) 

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/parfm@112 edb9625f-4e0d-4859-8d74-9fd3b1da38cb